<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .city{
            position: relative;
            width: 120px;
            height: 120px;
            border: 1px solid pink;

        }
        .city .d{
             width: 10px;
             height: 10px;
             background-color: red;
             border-radius: 50%;
             position: absolute;
             top: 50%;
             left: 50%;
             transform: translate(-50%,-50%);
        }
        div[class^=in] {
            width: 20px;
            height: 20px;
            box-shadow: 0 0 12px red;
            border-radius: 50%;
            position: absolute;
             top: 50%;
             left: 50%;
             transform: translate(-50%,-50%);
             animation: map 1.5s infinite;
        }
        @keyframes map{
            0%{
                width: 0px;
                height: 0px;
                opacity: 1;
            }
            100%{
                width: 60px;
                height: 60px;
                opacity: 0;
            }
        }
        .city  .in-2{
            animation-delay: 0.4s;
        }
         .city  .in-3{
            animation-delay: 0.8s;
        }

    </style>
</head>

<body>
    <div class="city">
        <div class="d"></div>
        <div class="in-1"></div>
        <div class="in-2"></div>
        <div class="in-3"></div>
    </div>

</body>

</html>